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package examples.session.stateful;
import javax.naming.*;
/**
* This class is a simple client for a stateful session bean.
*
* To illustrate how passivation works, configure your EJB server
* to allow only 2 stateful session beans in memory. (Consult your
* vendor documentation for details on how to do this.) We create
* 3 beans in this example to see how and when beans are passivated.
*/
public class CountClient {
public static final int noOfClients = 3;
public static void main(String[] args) {
try {
/* Get a reference to the bean */
Context ctx = new InitialContext(System.getProperties());
/* An array to hold the Count beans */
Count count[] = new Count[noOfClients];
int countVal = 0;
/* Create and count() on each member of array */
System.out.println("Instantiating beans...");
for (int i = 0; i < noOfClients; i++) {
count[i] = (Count) ctx.lookup(Count.class.getName());
/* initialize each bean to the current count value */
count[i].set(countVal);
/* Add 1 and print */
countVal = count[i].count();
System.out.println(countVal);
/* Sleep for 1/2 second */
Thread.sleep(100);
}
/*
* Let's call count() on each bean to make sure the
* beans were passivated and activated properly.
*/
System.out.println("Calling count() on beans...");
for (int i = 0; i < noOfClients; i++) {
/* Add 1 and print */
countVal = count[i].count();
System.out.println(countVal);
/* call remove to let the container dispose of the bean */
count[i].remove();
/* Sleep for 1/2 second */
Thread.sleep(50);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
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